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Improvement of ride quality for a wheel loader with semi-active cab isolation system via fuzzy self tuning of PID controller
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Improving driver ride comfort of a wheel loader is important to avoid potential health hazards from the whole-body vibration. A fuzzy self-tuning of PID controller is designed to control the damping coefficient of Semi-active cab isolation system (SCIS) for a wheel loader. A dynamic model of a wheel loader is establish under survey conditions for analysis and evaluation. The r.m.s acceleration responses of the vertical driver's seat and pitch angle of vehicle body according to ISO2631-1 (1997-E) are chosen as objective functions. The effectiveness of the proposed control strategy is analyzed through simulations involving excitations for a random road profile in time domain. The proposed SCIS is simulated and analyzed by Matlab/Simulink software in comparison with a passive cab isolation system (PCIS) under survey conditions. The achieved results indicate that ride comfort effectiveness of a wheel loader with SCIS is better than PCIS under survey conditions. In addition, the study results are the initial basis for optimizing controller parameters.
Academy of Military Science and Technology
Title: Improvement of ride quality for a wheel loader with semi-active cab isolation system via fuzzy self tuning of PID controller
Description:
Improving driver ride comfort of a wheel loader is important to avoid potential health hazards from the whole-body vibration.
A fuzzy self-tuning of PID controller is designed to control the damping coefficient of Semi-active cab isolation system (SCIS) for a wheel loader.
A dynamic model of a wheel loader is establish under survey conditions for analysis and evaluation.
The r.
m.
s acceleration responses of the vertical driver's seat and pitch angle of vehicle body according to ISO2631-1 (1997-E) are chosen as objective functions.
The effectiveness of the proposed control strategy is analyzed through simulations involving excitations for a random road profile in time domain.
The proposed SCIS is simulated and analyzed by Matlab/Simulink software in comparison with a passive cab isolation system (PCIS) under survey conditions.
The achieved results indicate that ride comfort effectiveness of a wheel loader with SCIS is better than PCIS under survey conditions.
In addition, the study results are the initial basis for optimizing controller parameters.
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